Bye bye absl, it was nice knowing you.

Got rid of absl because trying to make it work in a python test binary
was more trouble than it was worth (see bug).

Also updated run_tests.sh to take in test file name and pattern match it
to the tests you want to run. For example, if I wanted to run
gcompute_client_test.py, I can just run $./run_tests.sh gcompute. Makes
it easy to run just the unittests you want (saving seconds!).

Bug: 112158432
Test: ./run_tests.sh
./run_tests.sh gcompute
m acloud_test && acloud_test

Change-Id: I5fefd133385bbba2ad25a18a0a5ce988964a811b
2 files changed